Portable handheld motor-driven tool
US4932366A · kind A · utility
4Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to handheld portable tools. An air temperature dependent cooling throttle flap controls the amount of cooling air passing over an air cooled engine. The arrangement of the throttle flap in an annular extension expels air in a manner not to annoy the operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.